An exercise controller with Tactical Training Exercise Control Group briefs international military officers on breaching techniques at Range 220 aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., May 2, 2018. The international officers are students at the Command and Staff College, Marine Corps University, Marine Corps Base Quantico, Va., and are set to graduate June 6, 2018. (U.S. Marine Corps photo by Lance Cpl. Preston L. Morris) - An exercise controller with Tactical Training Exercise Control Group briefs international military officers on breaching techniques at Range 220 aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., May 2, 2018. The international officers are students at the Command and Staff College, Marine Corps University, Marine Corps Base Quantico, Va., and are set to graduate June 6, 2018. (U.S. Marine Corps photo by Lance Cpl. Preston L. Morris)

Marines with Marine Wing Communication Squadron 38 dig trenches for wires at Camp Wilson aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., January 22, 2018, as a part of Integrated Training Exercise 2-18. The purpose of ITX is to create a challenging, realistic training environment that produces a combat-ready forces capable of operating as an integrated MAGTF.(Photo provided by courtesy asset) - Marines with Marine Wing Communication Squadron 38 dig trenches for wires at Camp Wilson aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., January 22, 2018, as a part of Integrated Training Exercise 2-18. The purpose of ITX is to create a challenging, realistic training environment that produces a combat-ready forces capable of operating as an integrated MAGTF. (Photo provided by courtesy asset)

Marines with 2nd Battalion, 8th Marine Regiment, observe as combat engineers lay down mine clearing line charges to clear the path Range 410 while participating in Integrated Training Exercise 3-16 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., May 9, 2016. 2/8 came from Marine Corps Base Camp Lejeune, N.C., to participate in ITX 3-16. (Official Marine Corps photo by Lance Cpl. Dave Flores/Released) - Marines with 2nd Battalion, 8th Marine Regiment, observe as combat engineers lay down mine clearing line charges to clear the path Range 410 while participating in Integrated Training Exercise 3-16 aboard Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., May 9, 2016. 2/8 came from Marine Corps Base Camp Lejeune, N.C., to participate in ITX 3-16. (Official Marine Corps photo by Lance Cpl. Dave Flores/Released)

Marine Wing Support Squadron-371 Marines, escort role players acting as local nationals during MWSS-371 Mission Rehearsal Exercise aboard at Command Observation Post five aboard the Combat Center, Feb. 17, 2015. MWWS-371 provides aviation-ground support, air crash fire rescue, fuel, and local maintenance and aircraft recovery for wing units they support. (Official Marine Corps photo by Lance Cpl. Medina Ayala-Lo/Released) - Marine Wing Support Squadron-371 Marines, escort role players acting as local nationals during MWSS-371 Mission Rehearsal Exercise aboard at Command Observation Post five aboard the Combat Center, Feb. 17, 2015. MWWS-371 provides aviation-ground support, air crash fire rescue, fuel, and local maintenance and aircraft recovery for wing units they support. (Official Marine Corps photo by Lance Cpl. Medina Ayala-Lo/Released)